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The average math SAT score is 522 with a standard deviation of 112. A particular high school claims that its students have unusually high math SAT scores. A random sample of 45 students from this school was​ selected, and the mean math SAT score was 551. Is the high school justified in its​ claim? Explain.

The average math SAT score is 522 with a standard deviation of 112. A particular high school claims that its students have unusually high math SAT scores. A random sample of 45 students from this school was​ selected, and the mean math SAT score was 551. Is the high school justified in its​ claim? Explain.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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The average math SAT score is
522
with a standard deviation of
112.
A particular high school claims that its students have unusually high math SAT scores. A random sample of
45
students from this school was​ selected, and the mean math SAT score was
551.
Is the high school justified in its​ claim? Explain.
 
 
 

Question content area bottom

Part 1
▼
 
Yes
No
​,
because the​ z-score
​(enter your response here
 
​)
is
▼
 
unusual
not unusual
since it
▼
 
does not lie
lies
within the range of a usual​ event, namely within
▼
 
1 standard deviation
2 standard deviations
3 standard deviations
of the mean of the sample means.
​(Round to two decimal places as​ needed.)
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